Features 1、Micro servo, weighing 9 grams, torque is 1.5kg/cm, quite powerful, reliable in use. 2、40A ESC, safety protection function, throttle calibration function, support a variety of procedures and methods. 3、Compatible with lithium and nickel metal hydride batteries. Reliable and durable. 4、You can change the time to suit different brushless motors. Meeting different demands. 5、Full protection: low voltage cut off protection/overheat, protection/throttle signal loss protection. Specification Condition: 100% Brand New Item Type: RC Plane Parts Material: ABS + Electronic Components Type: 1250KV Motor + 40A ESC + 9G Servo+ 8060 Propeller SG90A 9G Servo: Size: Approx. 21.5 x 11.8 x 22.7mm / 0.8 x 0.5 x 0.9in Weight: 9 g / 0.3 oz(approx.) No-Load Speed: 0.12 seconds / 60 degrees (4.8V) Blocking Torque: 1.5-1.7kg/cm (4.8V-6V) Working Temperature: -30 ~ + 60 ℃ Dead Zone Setting: 5 microseconds 2217 Motor: Size: Approx. 27.8 x 32mm / 1.1 x 1.3in Weight: 68 g / 2.4 oz(approx.) Shaft Diameter: Approx. 4mm / 0.2in Accessories: 4.0mm pillar adapter, motor mounting seats, screws Props Recommended: 2217-1100kV: 11 or 10 inch items, e.g. 1155, 1070, 1060, etc. 2217-1250kV: 9-inch prop, e.g. 9050, 9045, 9060, etc. 2217-2300KV: 6 inch item, e.g. 6040, etc. 40A ESC: Features: Safety protection: no matter where the throttle is, the motor will not rotates when connected to the battery. Throttle calibration function: The throttle range can be calibrated to be compatible with different transmitters. User programmable. Support a variety of program methods: emitting rod, LED program card.Very easy to operate at home or on the fly. Compatible with lithium and nickel metal hydride batteries. You can change the time to suit different brushless motors. Specifications: Types: Long, short Current: 40A Output Capacity: Continuous current 40A, short current 55A (not less than 10 seconds) Power Input: 2-4 lithium batteries (not included) Maximum Speed: 210,000 RPM for 2-pole motor, 7,000 RPM for 6-pole motor, and 35,000 RPM for 12-pole motor Size: Approx. 68 x 25 x 8mm / 2.7 x 1 x 0.3in Package List 2 x 9G SG90 Servo 1 x A2212 KV1250 Brushless Motor 2 x 8060 Propeller 2 x Propeller Gasket 1 x 40A ESC